Cheswick, William R. <br/><br/>
Firewalls and Iinternet security: repelling the wily hacker 
by William R Cheswick and Steven M Bellovin 
 - California  Addison-Wesley  1994 
 - xiv, 306p. 
<br/><br/><label>ISBN: </label>0201633574 
<br/><br/><label>Dewey Class. No.: </label>005.8  / N945